Guadanuño Reservoir — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Guadanuño Reservoir, trends, monthly ranges and the forecast for the coming days.

San Rafael de Navallana Reservoir, Spain © Por kallerna, CC BY-SA 4.0

Current Water Temperature

21.8°C

Today

21.9°C

Yesterday

24.1°C

A Week Ago

Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Guadanuño Reservoir today is 21.8°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart Over the Last 30 Days

From May 10 to June 10

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
JUN 3	22.9°C	23.0°C
JUN 4	22.9°C	23.0°C
JUN 5	22.3°C	23.0°C
JUN 6	22.1°C	23.0°C
JUN 7	21.9°C	23.0°C
JUN 8	21.8°C	23.0°C
JUN 11		23.0°C	21.9°C
JUN 12		23.0°C	21.9°C
JUN 13		23.0°C	22.0°C
JUN 14		23.0°C	22.0°C
JUN 15		23.0°C	22.1°C
JUN 16		23.0°C	22.2°C
JUN 17		23.0°C	22.2°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.

Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.

Monthly Water Temperature Range (Min, Max & Average)

Month	Min	Avg	Max
January	5°C	9°C	12°C
February	5°C	9°C	13°C
March	5°C	9°C	14°C
April	9°C	14°C	19°C
May	13°C	19°C	25°C
June	18°C	23°C	28°C
July	20°C	25°C	30°C
August	21°C	26°C	32°C
September	19°C	24°C	29°C
October	12°C	17°C	20°C
November	9°C	13°C	17°C
December	7°C	11°C	14°C

Guadanuño Reservoir: Water Temperature by Location

🇪🇸 Spain > Andalusia

Guadanuño Reservoir: Weather Forecast

June 9

° / °

mainly clear

rain: 0% | wind:

June 10

° / °

mainly clear

rain: 0% | wind:

June 11

° / °

mainly clear

rain: 0% | wind:

June 12

° / °

overcast

rain: 5% | wind:

June 13

° / °

overcast

rain: 5% | wind:

June 14

° / °

overcast

rain: 20% | wind:

Location & Local Information

The Embalse de Guadanuño, like many Andalusian reservoirs, shows notable seasonal variation in water temperature. In summer the surface water typically warms to about 20–26 °C (68–79 °F), sometimes rising a few degrees in shallow bays on hot, calm days. During spring and autumn temperatures commonly range from roughly 12–19 °C (54–66 °F) as air temperatures moderate and inflows change. In winter the reservoir can cool to near 6–12 °C (43–54 °F), with deeper or shaded zones remaining colder. These figures are approximate and can vary with recent weather, reservoir level and depth; deeper water remains substantially colder year-round.

Swimming at Guadanuño depends on local rules and conditions rather than solely on temperature. Some reservoirs in the region allow informal bathing in safe, accessibly shallow areas, and visitors often swim in summer when surface temperatures are comfortable. However, many reservoirs that serve as water supply or have operational infrastructure restrict bathing to protect water quality and for safety reasons such as submerged hazards, sudden drops, boat traffic and lack of lifeguards. Before entering the water it is advisable to check on-site signage or municipal guidance and consider factors like currents, water clarity and temperature shock, especially outside high summer.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Guadanuño Reservoir?

Water Temperature in Guadanuño Reservoir today is 21.8°C.

What is the water temperature in Guadanuño Reservoir during the summer months?

The water temperature in Guadanuño Reservoir in summer fluctuates in the range of 18°C - 32°C.

Is it possible to swim in Guadanuño Reservoir (Spain) and what are the possibilities for this?

Officially, swimming in the Guadanuño Reservoir is generally not permitted and opportunities are therefore limited, although some people occasionally bathe or paddle in calm spots, so you should check current local regulations, water quality and safety and, when available, use designated or authorized recreational areas.